Are 'safe' assets really safe?

When the markets tanked, there was a flee to safety. Investors abandoned stocks and bought "risk free" assets in droves. Now that the market is rallying, is this still a good idea?

According to John Roque, a "technical analyst" at Natixis Bleichroeder, investors should keep the bulk of their money in "safe" assets, which include cash, the dollar and Treasuries. Mr. Roque is concerned about the perils of "social unrest" and "anti-capitalist behavior." Should you rely on Mr. Roque's advice?